From: Robert Klemme <shortcutter@...>
Date: 2007-04-04T02:00:22+09:00
Subject: Re: search a file and replace text

On 03.04.2007 18:56, phil.swenson@gmail.com wrote:
> well I *THOUGHT* I knew how to do it, here's my first crack at it:
> 
>         file_name = base_config_path + '/Caching/tangosol-
> coherence.xml'
>         File.open(file_name, File::RDWR).each{ |line|
>            if line.gsub!(/30890/, port.to_s)
>                 puts "tangosol port overridden with %d" % port
>                 break
>             end
>         }
> 
> 
> The gsub doesn't modify the line, guess it just modifies the string.

Exactly.

> How do I actually modify the file itself?

Read it, modify it, write it.  Or use ruby -pi.bak ...

	robert